Complement control proteinĀ areĀ proteinsĀ that interact with components of theĀ complement system
TheĀ complement systemĀ is tightly regulated by a network of proteins known as “regulators of complement activation (RCA)” that help distinguish target cells as “self” or “non-self.” A subset of this family of proteins, complement control proteins (CCP), are chara
Complement receptor type 2Ā (CR2)
Complement receptor type 2 (CR2), also known as complement C3d receptor, Epstein-Barr virus receptor, and CD21 (cluster of differentiation 21), is a protein that in humans is encoded by the CR2 gene. CR2 is involved in theĀ complement system. It binds toĀ iC3b
Rosetting
Erythrocyte rosettingĀ orĀ E-rosettingĀ is a phenomenon seen through aĀ microscopeĀ whereĀ red blood cellsĀ (erythrocytes)Ā are arranged around a central cell to form a cluster that looks like a flower. The red blood cells surrounding the cell form theĀ petal,Ā while the central cell forms theĀ stig
Complement receptor type 1Ā (CR1)
Complement receptor type 1Ā (CR1) also known asĀ C3b/C4b receptorĀ orĀ CD35Ā (cluster of differentiation 35) is aĀ proteinĀ that in humans is encoded by theĀ CR1Ā gene. This gene is a member of theĀ regulators of complement activationĀ (RCA) family and is located in the ‘cluster RCA’ reg
Three-finger proteins and three-finger toxins
Three-finger proteins or three-finger protein domains (3FP or TFPD) are a protein superfamily consisting of small, roughly 60-80 amino acid residue protein domains with a common tertiary structure: three beta strand loops extended from
A Mad Scientist’s Dream – Rumpless Chickens (and more)
Today, we delve into the bizarre phenomenon of rumpless chickensāa feathered marvel characterized by caudal dysplasia, or as some like to call it, the ultimate chicken makeover! These quirky birds are missing their pygostyle, that charming little appendage known as the āparsonās nose,ā a mut
Effect of biotin deficiency on embryonic development in the domestic fowl (1944) with reference and cited by articles
The approximate biotin requirements of breeding hens have been established and the embryos examined for gross pathological symptoms and the approximate age at death are recorded. Cravens, W.W., W., & Sebesta, M.A. (1944). Effect of biotin deficiency on embryonic development in the domestic fowl.
Isoleucine, Tryptophol, Sleeping Sickness, The Disulfiram Effect and One Trick Hypnotists From Hell
IsoleucineĀ (symbolĀ IleĀ orĀ I)Ā is anĀ Ī±-amino acidĀ that is used in theĀ biosynthesisĀ ofĀ proteins. It contains anĀ Ī±-amino groupĀ (which is in the protonated āNH+3Ā form under biological conditions), anĀ Ī±-carboxylic acid groupĀ (which is in the deprotonated āCOOāĀ form under biologica
Biotin
BIOTIN Biotin is involved in a wide range of metabolic processes in humans and in other organisms, primarily related to the utilization of fats, carbohydrates, and amino acids. The name biotin, borrowed from the German Biotin, derives from the Ancient Greek Ī²ĪÆĪæĻĪæĻ (bĆotos; ‘life’)
AvidinĀ is aĀ tetramericĀ biotin-bindingĀ proteinĀ produced in theĀ oviductsĀ ofĀ birds,Ā reptiles, amphibians
Dimeric members of the avidin family are also found in some bacteria. In chicken egg white, avidin makes up approximately 0.05% of total protein (approximately 1800 Ī¼g per egg). The tetrameric protein contains four identical subunits (homotetramer), each of which can bind to&nbs
Albumen prints and egg whites…all the rage back in the day…and a few other things
The albumen print, also called albumen silver print, was published in January 1847 by Louis DƩsirƩ Blanquart-Evrard, and was the first commercially exploitable method of producing a photographic print on a paper base from a negative. It used the albumen foun
p-PhenylenediamineĀ (PPD) is a derivative of aniline used in kevlar, hair dye and henna substitutions among other things, the derivatives of which are used in antiozonants among other horrors
p-PhenylenediamineĀ (PPD) is anĀ organic compoundĀ with the formula C6H4(NH2)2. This derivative ofĀ anilineĀ is a white solid, but samples can darken due to air oxidation.It is mainly used as a component of engineeringĀ polymersĀ and composites likeĀ kevlar. It is also an ingredient inĀ hair dyesĀ a
Glycodelin is found in oocyteĀ and sperm
aka human placental protein-14
Paintings by Frans Francken the Younger
Frans Francken the Younger (1581 ā1642) was a Flemish painter and the best-known and most prolific member of the large Francken family of artists. He painted large altarpieces for churches as well as smaller historical, mythological and allegorical scenes. His de